| 基于GIS的涝渍地土壤质量综合评价 |
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| 引用本文： | 李敏,龚绍琦.基于GIS的涝渍地土壤质量综合评价[J].江西农业大学学报,2004,26(2):309-313. |
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| 作者姓名： | 李敏 龚绍琦 |
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| 作者单位： | 1. 江西农业大学,国土资源与环境学院,江西,南昌,330045;湖北省涝渍灾害与湿地农业重点实验室,湖北,荆州,434025
2. 江西农业大学,国土资源与环境学院,江西,南昌,330045 |
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| 摘 要： | 在地理信息系统的支持下，探讨了模糊数学与多元统计分析相结合的方法在土壤质量综合评价中的应用。以湖北省三湖农场为例，应用GIS对土壤图和土地利用现状图数字化，将数字化后的各图层进行叠加分析，以获得的最小图斑为评价单元。根据S型或抛物线型作物效应曲线建立各项评价指标的隶属函数，计算出隶属度，并按评价指标的公因子方差确定其权重系数，从而求得每个评价单元的综合指标值。在此基础上绘制出土壤质量评价图。
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| 关 键 词： | GIS 涝渍地 土壤质量 评价 地理信息系统 模糊数学 多元统计分析 |
| 文章编号： | 1000-2286(2004)02-0309-05 |
| 修稿时间： | 2003年11月10 |
Integrated Evaluation of Soil Quality Based on GIS in Waterlogged Land |
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| LI Min.Integrated Evaluation of Soil Quality Based on GIS in Waterlogged Land[J].Acta Agriculturae Universitis Jiangxiensis,2004,26(2):309-313. |
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| Authors: | LI Min |
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| Abstract: | The paper discusses the application of fuzzy mathematics and multi statistical analysis in integrated evaluation of soil quality supportied by geographic information system and geostatistics. Taking Sanhu farm in Hubei province as an example, the soil map and land use map were digitized by GIS, these digitized overages were overlaid, the minimal map speckle was taken as evaluation unit. S- or parabola-type dependence functions were developed according to their effect on crop and the function value was also calculated. The weight value for evaluation indexes was calculated by their communalities, then the integrated index values for every evaluation unit were obtained. Based on all the above, the soil quality evaluation map was worked out. |
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| Keywords: | geographic information system soil quality evaluation |
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